Waiting for a paid-up letter

It's a mission to get a paid-up letter from MBD after settling your debt in full. I need a paid-up letter for my settled Capitec credit account as a matter of great urgency, and have placed various calls to MBD's Customer Care. I was promised by two different agents on two separate days that I would receive the letter by end of day today, Monday the 27th of January, but haven't received it so far. How hard can it be to provide a simple letter? You're holding up another important process that's impacting my personal life and that is simply unacceptable.